Here’s a clear, practical comparison chart of the main Robertshaw / SIT Eurosit-style gas control valves you’ll come across in catering, heating, and fireplace applications. The most common benchmark is the Eurosit 630 Gas Valve, which many Robertshaw-compatible or cross-reference valves are compared against.
Key Types of Eurosit / Robertshaw-Equivalent Valves
PRODUCT COMPARISON TABLE
| Feature / Type | Eurosit 630 | Eurosit 710 | Eurosit 820 Nova | Robertshaw Unitrol 7000 |
|---|---|---|---|---|
| Control Type | Thermostatic + manual | Thermostatic (higher capacity) | Combination (thermostat + safety) | Combination (electronic/millivolt) |
| Ignition Type | Pilot (thermocouple) | Pilot (thermocouple) | Pilot / electronic | Pilot, spark, or HSI |
| Voltage Requirement | None (millivolt) | None (millivolt) | Millivolt or 24V (model dependent) | 24V / 120V / millivolt options |
| Main Application | Fires, ovens, fryers | Larger appliances, boilers | Boilers, heaters, commercial heating | HVAC, boilers, furnaces |
| Thermostat Range | Yes (integrated knob) | Yes (wider range) | Yes (external/internal) | External thermostat control |
| Gas Types | NG / LPG | NG / LPG | NG / LPG | NG / LPG (cdn.contentspeed.ro) |
| Flow Capacity | Low–medium | Medium–high | Medium–high | High (up to large BTU systems) (Robertshaw) |
| Safety Features | Thermocouple shut-off | Thermocouple shut-off | Full safety + regulator | Dual valves, regulator, safety magnet (Robertshaw) |
| Pressure Regulator | Optional / built-in | Built-in | Built-in | Built-in (model dependent) |
| Complexity | Simple | Moderate | Advanced | Most complex |
How They Differ (Real-World Use)
1. Eurosit 630 (Most Common in Catering)
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Found in fryers, ovens, space heaters
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Fully mechanical (no power needed)
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Simple, reliable, easy to replace
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Includes pilot, thermostat, and safety shut-off in one unit (cdn.contentspeed.ro)
This is the go-to replacement valve in commercial kitchens.
2. Eurosit 710 (Step Up in Capacity)
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Similar design but:
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Higher gas flow
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Better suited to larger burners / boilers
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Still millivolt-based (no external power)
Think of it as a heavy-duty 630
3. Eurosit 820 Nova (More Advanced Control)
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Used in:
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Boilers
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Heating systems
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Adds:
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More precise regulation
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Optional electrical control
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This sits between manual catering valves and full HVAC valves
4. Robertshaw Unitrol 7000 (Different Category)
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Not a direct Eurosit clone — more advanced
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Used in:
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HVAC systems
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Large commercial heating
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Features:
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Dual automatic valves
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Pressure regulator
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Electronic or millivolt control (Robertshaw)
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This is a full combination gas valve, not just a tap/thermostat.
Quick Selection Guide
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Catering equipment (fryers, grills, ovens) → Eurosit 630
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Higher output appliances → Eurosit 710
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Heating systems / boilers → Eurosit 820 Nova
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HVAC / large commercial heating → Robertshaw Unitrol 7000
Important Compatibility Note
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“Robertshaw Eurosit” is often used loosely in the trade.
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In reality:
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Eurosit = SIT Group product line
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Robertshaw = separate manufacturer
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They are cross-referenced, not identical.